Power extension device



FIG. 1 is a perspective view of a first embodiment of an ornamental design of a power extension device.

FIG. 2 is a rear view of the first embodiment of an ornamental design of a power extension device.

FIG. 3 is a front view of the first embodiment of an ornamental design of a power extension device.

FIG. 4 is a left side view of the first embodiment of an ornamental design of a power extension device.

FIG. 5 is a right side view of the first embodiment of an ornamental design of a power extension device.

FIG. 6 is a top view of the first embodiment of an ornamental design of a power extension device.

FIG. 7 is a bottom view of the first embodiment of an ornamental design of a power extension device.

FIG. 8 is a perspective view of a second embodiment of an ornamental design of a power extension device.

FIG. 9 is a rear view of the second embodiment of an ornamental design of a power extension device.

FIG. 10 is a front view of the second embodiment of an ornamental design of a power extension device.

FIG. 11 is a left side view of the second embodiment of an ornamental design of a power extension device.

FIG. 12 is a right side view of the second embodiment of an ornamental design of a power extension device.

FIG. 13 is a top view of the second embodiment of an ornamental design of a power extension device; and,

FIG. 14 is a bottom view of the second embodiment of an ornamental design of a power extension device.

The broken lines in the drawings depict boundaries of the claim and form no part thereof. 

CLAIM The ornamental design for a power extension device, as shown and described. 